What is async/await in Rust?

What is async/await in Rust?

Async/await in Rust is a syntax for writing asynchronous code, allowing you to write non-blocking code more easily.

How does it improve performance in Rust applications?

It allows tasks to run concurrently without blocking the main thread, improving responsiveness and resource utilization.

Can you give me a simple example of using async/await?

Sure! Here's a basic example:

use tokio;

#[tokio::main]
async fn main() {
    let result = async_function().await;
    println!("Result: {}", result);
}

async fn async_function() -> i32 {
    42
}

This code defines an async function and awaits its result.

What libraries do I need to use async/await in Rust?

You typically use the Tokio or async-std libraries, which provide the necessary runtime for async operations.